Patent US2385382A successfully refreshed from Google Patents.
Patent US2982981A successfully refreshed from Google Patents.
US2982981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for cleaning upholstery and carpets
Assignee: Individual
•
Filing: 1959-02-26
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Granted: 1961-05-09
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Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Otto M Waara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:17
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4088; A47L11/32; A47L11/4036; A47L11/4041; A47L11/4075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |